Evaluation of Functions
Composition of Functions
Domain & Range
100

f(x)=4x+2, find f(8)

34

100

let f(x)=2x-1 and g(x)=3x

find g(-2)

-6

100

let f(x)=2x-1 and g(x)=3x  

what is the domain of f(x)?

all real numbers
200

f(x)= -2x-1

-7

200

let f(x)=2x-1 and g(x)=3x 

find f(-1/2) 

-2

200

f(x) = 2x2 - 4  and g(x) = 5x

what is the range of g(x)?

all real numbers

300

What is f(4)?

f(4)=1

300

let f(x)=2x-1 and g(x)=3x 

what is f(3) + f(2)

-1

300

What is the range of f(x)?

[0,7]

400

let f(x)=2x-1 and g(x)=3x 

what is f(3) + f(2)

11

400

let f(x)=2x-1 and g(x)=3x 

find f(g(-1))

-7

400

What is the domain of f(x)?

[0,10]

500

Find f(4)+f(8)

500

let f(x)=2x-1 and g(x)=3x 

find g(f(-2))

-15

500

let f(x) = 2x+1 and g(x)= x2

What is the domain and range of f(g(x)?

domain: All real numbers

range: y>=1 or [1, infinity)